7 Strand Core 4mm Solid Dark Blue 550 Polyester Paracord is a high-performance Type III paracord designed for outdoor, marine, tactical, and custom applications requiring strength, durability, and stable performance. Manufactured with a true 7-strand inner core and a tightly braided 32-strand polyester sheath, this 4mm cord delivers a verified minimum breaking strength of 550 lb (250 kg).
Made from 100% high-tenacity polyester, this paracord provides excellent resistance to UV exposure, moisture, abrasion, rot, and mildew. Compared with traditional nylon cords, polyester offers lower water absorption and better dimensional stability, making it suitable for long-term outdoor environments.
The deep solid dark blue color is produced through a solution-dyed process, where pigments are permanently integrated into the polyester fibers. This ensures excellent color fastness without fading, bleeding, or uneven discoloration during extended use.
With only 10-15% elongation, the low-stretch construction helps maintain stable tension and secure knots under load. The seven inner strands can also be separated for emergency repairs, fishing line, sewing thread, or lightweight lashing applications.
The internal structure of this Type III Paracord consists of 7 independent high-strength polyester strands. This multi-core construction improves load distribution, knot stability, and overall mechanical performance.
Compared with ordinary single-core cords, the 7 strand structure offers:
The inner strands can also be separated for emergency use, crafting, and specialized applications.
Made from 100% high-quality polyester fiber, this 4mm Polyester Paracord is engineered for long-term outdoor performance.
Key material advantages include:
The polyester fiber maintains color stability and strength even after prolonged exposure to sunlight.
Unlike some traditional rope materials, polyester absorbs minimal moisture, helping maintain performance in wet environments.
The tightly woven sheath protects the inner core from friction damage during repeated use.
The solid dark blue surface provides a professional appearance while maintaining excellent color retention.
Designed according to the popular Type III 550 paracord specification, this rope delivers an excellent balance between strength and portability.
Main advantages:
550 lbs minimum breaking strength
4mm diameter lightweight structure
strand polyester inner core
Tight braided polyester sheath
Excellent knot performance
Durable for repeated outdoor use
Available for bulk and customized orders
550 paracord is widely recognized for its versatility in outdoor gear, survival tools, crafting, and everyday utility applications.
|
Parameter |
Specification |
|
Product Name |
7 Strand Core 4mm Solid Dark Blue 550 Polyester Paracord |
|
Type |
Type III Paracord |
|
Diameter |
4mm (Approx. 5/32 inch) |
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Tensile Strength |
550 lb / 249 kg Minimum |
|
Safe Working Load |
Recommended Not to Exceed 110 lb (50 kg) |
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Inner Core Structure |
7 Independent Twisted High-Tenacity Polyester Strands |
|
Sheath Braiding |
32-Strand Tight Braid |
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Material |
100% Polyester (Solution-Dyed Dark Blue) |
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Elongation at Break |
10%–15% |
|
UV Resistance |
Excellent (3–5 Years Outdoor Life) |
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Color Fastness |
Permanent Color, Will Not Run or Bleed |
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Weight per Meter |
Approx. 8.5g (Approx. 168g per 30.5m Bundle) |
|
Origin |
Taizhou, Jiangsu, China |
Marine & Boating: Fender lines, dock lines, safety lines. The dark blue is a classic marine color, and polyester withstands saltwater degradation
Tactical & Gear: Equipment lashing, gear marking, and professional-grade accessories. The dark, non-reflective color is suitable for tactical use.
Outdoor & Survival: Tent guylines, bear bag hangs, emergency repairs, and shelter building. The low stretch and high strength provide reliable performance
EDC & Crafting: Paracord bracelets, keychains, knife lanyards, watch bands. A deep blue adds a classic, sophisticated style to functional projects
Pet Products: Custom leashes, collars, and harnesses. Durable, easy to clean, and offers a distinguished look.
Industrial & Utility: Equipment securing, cargo organization, and general-purpose utility. Its professional appearance is suitable for work environments.
As an experienced polyester paracord manufacturer in China, T&T Outdoor provides flexible OEM and ODM solutions for wholesalers, distributors, and outdoor product brands. We support customized production to meet different application, packaging, and branding requirements.
Available Customization Options:
Custom Colors – Develop custom shades or match your specific color requirements
Custom Diameter – Available diameter options from 2mm to 6mm according to application needs
Custom Lengths – Flexible spool lengths and cutting options available
Custom Packaging – Support retail boxes, hang cards, blister packs, and customized packaging solutions
Logo Branding – Add your logo through packaging printing or customized marking solutions
Custom Labels – Create personalized labels for your brand identity
Flexible MOQ – Order quantities can be adjusted based on product specifications and customization requirements
| Aspect | Lower-Grade Surface-Dyed Cord | Standard Nylon Paracord | T&T Outdoor Polyester Paracord |
| Core Structure | Basic internal strand construction | 7 core strands with standard structure | True 7-strand high-tenacity polyester core |
| Sheath Braiding | Standard braid with lower density | 16-24 carrier braid structure | 32-strand dense braided sheath for improved protection |
| Material & Color Stability | May have reduced color durability | Nylon material with higher moisture absorption | 100% polyester fiber with stable dark blue color performance |
| UV Resistance | Moderate outdoor durability | Requires additional protection for extended exposure | Excellent resistance for outdoor applications |
| Wet Performance | Performance may change after moisture exposure | Absorbs more water and becomes heavier | Low moisture absorption with stable performance |
| Stretch Performance | Higher elongation | Approximately 30% stretch | Low stretch design for better tension retention |
T&T Outdoor is a direct manufacturer specializing in high-quality polyester paracord production. From yarn selection and fiber processing to braiding and finished spool packaging, we maintain strict control over every production stage to ensure consistent strength, appearance, and color quality.
With more than 15 years of experience in braided rope manufacturing, T&T Outdoor has established a professional production system for reliable bulk supply and customized paracord solutions.
Our manufacturing advantages include:
• 80+ high-speed braiding machines supporting standard production and customized designs
• Integrated yarn processing capability for improved material consistency and production control
• Monthly production capacity exceeding 100 tons of 4mm paracord for wholesale requirements
• Experienced quality inspection team ensuring strength, diameter, color, and appearance consistency
Our ISO 9001:2015 certified facility applies strict quality control procedures throughout the manufacturing process:
Raw Materials: Premium polyester materials with stable dark blue pigments to ensure consistent fiber quality and color performance
Diameter Control: Laser measurement during braiding maintains accurate diameter consistency with controlled tolerance
Strength Testing: Production batches undergo tensile testing to verify reliable breaking strength performance
Color Verification: Spectrophotometer testing ensures consistent dark blue color matching between batches
Sheath Inspection: Finished cords are visually inspected to confirm braid uniformity and surface quality
Compliance Standards: Materials comply with REACH and RoHS requirements, with OEKO-TEX certified yarn options available
Packaging: PE bag, cardboard spool (50m/100m), bulk coils (300m+), or custom retail packaging.
Shipping: Samples via DHL/FedEx (3-7 days). Large orders via sea freight (FOB, CIF, EXW, DDP). Lead time: 7-10 days for stock; 15-25 days for custom packaging.
Q1: Is this cord suitable for outdoor and marine use?
Yes. It is made from 100% polyester, which offers superior resistance to UV degradation, rot, and moisture absorption compared to nylon.
Q2: Does the color run or bleed?
No. Our solution-dyed process permanently infuses the pigment into every fiber, ensuring the color will not transfer to your hands, clothes, or gear.
Q3: Can I use this 550 cord for climbing?.
No. 550 paracord is NOT designed for life-safety applications like climbing or rappelling. The safe working load is 110 lb (50 kg), and knots can reduce strength by up to 40%
Q4: How does dark blue compare to other blue paracord?
Dark blue is a deep, rich, and professional shade. It offers a more subdued and classic look compared to sky blue or cyan, making it suitable for tactical, marine, and professional applications.
Q5: How does polyester paracord compare to nylon?
Polyester offers superior resistance to UV degradation and moisture absorption, and it has significantly less stretch (10-15%) than nylon (30%+), making it better for applications requiring stable tension.
Q6: What is your minimum order quantity (MOQ)?
Stock: flexible – single rolls available.OEM/custom packaging: varies by specification. Contact us for details.
Q7: Can I request samples?
Yes. Free samples (3m) are available (buyer pays shipping). Pre-production samples for custom projects are also available with a fee, deductible from your order.
Sample support: Free sample (3m) – buyer pays shipping. Pre-production sample – fee deductible. Batch test report with every shipment.
Warranty: 12 months – manufacturing defects replaced free.
Returns: Unused, unopened rolls: 30-day return. Quality issues: replacement within 10 days. Custom orders: non-returnable unless defective.
Looking for a reliable 550 Polyester Paracord manufacturer in China?
T&T Outdoor Goods supplies high-quality polyester paracord with competitive factory pricing, flexible customization options, and professional OEM support.
Contact us today for bulk orders, customized solutions, and wholesale pricing.
Get Your Customized Paracord Solution Now.
Address
Jiangyan District, Taizhou City, Jiangsu Province, China
Tel
Are you looking for a reliable manufacturer of paracord and braided ropes? Please contact T&T Outdoor. For inquiries regarding quotes or partnerships, feel free to email sales@tt-outdoor.com or fill out the inquiry form below. Our sales representatives will get in touch with you within 24 hours.
As an experienced rope factory in China, we provide OEM and customized services including material selection, color customization, rope structure design and bulk production. Share your requirements with our team, and we will provide suitable product recommendations, technical support and competitive manufacturing solutions.
